Alright, let's work through 1376 times 1604 step by step
1376 × 1604 = 1604 × (1376)
+ 1604 × 6 that is equal 9624
+ 1604 × 70 that equals 112280
+ 1604 × 300 that equals 481200
+ 1604 × 1000 giving us 1604000

= 2207104
